<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<link rel="stylesheet" href="css/bootstrap.min.css">
<script src="js/vue/vue.min.js"></script>
<script src="js/jquery/jquery.min.js"></script>
<script src="js/laypage/laypage.js" charset="utf-8"></script>
<script src="js/layer/layer.js" charset="utf-8"></script>
</head>
<body>
<p>123</p>
<div>
<p>one</p>
</div>
<p>456</p>
<script>
alert($("/div>p").html()); 
</script>
</body>
</html>